OTHER ANSWERS

The limit on recipients in an message is 50. I would split the recipients list - you can leave 50 on one email and then put 25 on the other. That's up to you. Check out this link for further information:

The recipients limit cannot be increased with email clients or webmail. However, you can send multiple emails using mailing list software such as phpList . If you intend to send out a large number of emails on a regular basis, you should also login to AMP in order to submit a request for exceeding the Email limit.